Pareiasaur reptile — Bradysaurus sp.
Geologic period: Middle Permian — Capitanian
Age: Middle Permian, within the Tapinocephalus Assemblage Zone.
Feeding: Herbivorous.
Locomotion: Heavy terrestrial quadruped.
Body plan: Large barrel-bodied quadruped with a massive skull and limited dermal armor.
Evidence: The skull and teeth are direct evidence. Herbivory and whole-body form are reconstructed from broader pareiasaur skeletal evidence.
Why it matters: Bradysaurus represents the large herbivores that occupied Permian terrestrial food webs before later therapsid communities became dominant.
Plain Language Identity: A large heavily built pareiasaur, an extinct herbivorous parareptile from the middle Permian of South Africa.
What You Are Looking At: A partial Bradysaurus skull preserving portions of the cranium, jaws and teeth.
Defense Or Attack: Robust body construction and dermal armor provided protection; it was not a specialized predator.
Ecosystem: Middle Permian Karoo Basin ecosystem of South Africa.
Preservation: Partial fossil skull.
Formation: Koonap Formation in the Smithsonian catalog.
Find Location: Beaufort West region, South Africa.
Research History: Recent systematic work places South African Bradysaurus among basal middle-Permian pareiasaurs. This is more precise than the broad legacy age field retained in some museum catalog metadata.
Open Questions: The Smithsonian exhibit identifies this specimen only as Bradysaurus sp.; do not assign it to a particular species without specimen-specific evidence.
Source Urls: https://naturalhistory.si.edu/visit/virtual-tour/current-exhibits/deep-time-virtual-tour-fossil-list; https://www.si.edu/object/nmnhpaleobiology_3450106; https://doi.org/10.1080/14772019.2022.2035440
Enrichment Method: SAGE curated research pass; title and scientific name matched; current research distinctions retained; evidence separated from inference
Scientific name: Bradysaurus sp.
Evidence / representation: Representative evidence-type visual; not the exact specimen.
Representative evidence-type visual; not the exact specimen.
The Permian World: Strange Bodies and the Great Dying.
This object page stays inside SAGE Museum. The Smithsonian link below is provided only as the original scholarly collection record. It opens separately.